JPH0612642U - Ladder equipment - Google Patents

Abstract

(57) [Summary] [Structure] In a ladder device to be attached to a work surface such as a pillar at a construction site, a support member for attaching the ladder is fixed to the work surface, and a hook metal provided on the ladder is attached to the support member. Engage and support the ladder on the work surface. [Effect] It is easy to install and does not need to be cut and removed to remove the installation device, which eliminates the man-hours required for removal.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ladder device, more specifically, a ladder device attached to a work surface such as a pillar at a construction site.

[0002]

[Prior art]

 At the construction site of a building, ladders are attached to steel columns for climbing to steel frames, climbing to working scaffolds, or working on poles. The pillars will be welded upwards to build the foundation members such as floors, and finally, the outer side of the steel pillars will be fitted with a PC board as a decorative outer wall and other members, and the building will be finished. The outer wall of is formed.

Conventionally, as shown in FIG. 6, the attachment of the ladder to the steel column has been performed by welding the ladder 1 to the column 2 via the bracket 3, so that it takes time and labor to construct the ladder. A lot of work was required when attaching a ladder to the corner of a pillar. Further, the bracket 3 is usually long, for example, 20 cm, and it interferes with the mounting of the PC board on the pillar 2 and the finishing process, so that it has to be cut and removed when the ladder is removed, which requires a lot of time and effort. Was.

[0004]

[Problems to be solved by the device]

 SUMMARY OF THE INVENTION An object of the present invention is to provide a ladder device which solves the above-mentioned problems in the conventional ladder device, is easy to install, and does not require cutting and removal of the column mounting device when removing the ladder.

[0005]

[Means for Solving the Problems]

 A ladder device according to the present invention for achieving the above object is a ladder device attached to a work surface such as a pillar at a construction work site, in which a support member for mounting the ladder is fixed to the work surface. The structural feature is that the ladder is detachably supported on the work surface by engaging the hooking metal provided on the ladder with the engaging part formed on the base. The hooking metal is fitted on the engaging part of the receiving and supporting member. Mating holes are formed, one of the holes is tightly fitted to the hook metal fitting, and the other is loosely fitted to the hook metal fitting, and the step of the flat U-shaped step of continuously descending to the ladder is made. Is preferably attached to the work surface in a detachable manner.

[0006]

[Action]

 According to the present invention, the ladder can be easily attached to the work surface by changing the shape of the support member by combining the support member having the engaging portion with the hook metal fitting provided on the ladder. This allows the attachment of ladders at various points on the pillar. Since the protrusion of the engaging portion is small and does not interfere with the mounting of the PC board on the pillar or the finishing work of the pillar, it is not necessary to cut or remove the support member and the engaging portion fixed to the pillar. In addition, the step-down U-shaped step that is attached to the work surface continuously and detachably on the ladder is effective as a lifting means when the work surface is too short to attach the ladder. As the foot is prevented from slipping in the lateral direction, it is possible to move up and down stably.

[0007]

【Example】

 Examples will be described below. The same numbers are used for the same members as the conventional example. FIG. 1 shows an embodiment of the present invention, in which a supporting member 7 for mounting a ladder 1 is fixed to a steel column 2 at predetermined intervals by welding. The receiving and supporting member 7 is provided with engaging portions 8 and 9, and the engaging portions 8 and 9 are provided with holes 10 and 11, respectively. Hook fittings 5 each having a tip 6 are provided on both upper and lower ends of the ladder 1 having a predetermined length via a bracket 4, and the tip 6 of the hook 5 of the ladder 1 is received by the receiving member. The ladder 1 is supported on the column 2 by fitting into the holes 10 and 11 of the engaging portion of 7. In this case, one hole 10 is formed so as to be tightly fitted with the tip 6 of the hook 5 and the other hole 11 is formed so as to be fitted with the tip 6 of the hook 5 and the loose. The ladder 1 is firmly held by the column 2 which is the work surface by the tight fitting portion, and the ladder is provided with the freedom due to the presence of the loose fitting portion. The protrusion length of the engaging portions 8 and 9 is usually 3 cm or less, and the protrusion length from the pillar is less than 4 cm even if the thickness of the support member 7 is added. The bracket 4 is formed to have the same length as the conventional bracket 3.

As shown in FIG. 2, the ladder is continuously attached to the pillar by a supporting member. Therefore, the support member is fixed to the column according to the length of the ladder. As shown in FIG. 3, when the ladder 1 is connected by fitting the end of the ladder 1 to the ladder connecting member 12 to which the hooking metal 5 having the bracket 4 and the tip 6 fitted, is fixed. The steps of are connected without interruption, and there is no hindrance to lifting. As shown in FIG. 4, if the supporting member 7 is formed in a right angle and fixed to the corner of the column 2, the ladder can be supported at the corner of the column.

As shown in FIG. 2, when the ladders are continuously attached to the columns, it may be too short to attach one ladder. In this case, as shown in FIG. 5, it is preferable that the ladder 1 is continuously provided with a stepped U-shaped step 14 which is downward in the front direction. To attach the step 14, the support member 13 similar to the support member 7 of the ladder 1 is fixed to the pillar 2, and the hook portions of the step 14 are attached to the holes 20 and 21 of the engaging portions 18 and 19 of the support member 13. 17 1 and 17 are inserted. The step 14 comprises a step 15 on which a person's foot is raised and lowered and side end portions 16 and 16 which are inclined forward and downward. Since the side edges 16 and 16 are lowered frontward, even if the person's feet that are going up and down slide sideways, the inclination prevents them from moving further sideways, so that they can move up and down stably. You can

After the work related to the pillar is completed and the hook fittings of the ladder are disengaged from the engaging portion and the ladder is removed from the pillar, since the projecting length of the support member is short, It is possible to finish the pillars from the top while they are fixed.

[0011]

[Effect of device]

 As described above, according to the present invention, there is provided a ladder device for mounting a pillar on a construction site, which is easy to install, does not require cutting and removal of the mounting device at the time of removal and removal, and does not require time and labor for removal. To be done.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a ladder device according to the present invention.

FIG. 2 is a partial perspective view showing the attachment of the ladder device according to the present invention.

FIG. 3 is a partial perspective view showing an embodiment of the ladder connection system of the present invention.

FIG. 4 is a horizontal sectional view showing another embodiment of the present invention.

FIG. 5 is a partial perspective view showing steps according to the present invention.

FIG. 6 is a partial perspective view showing a conventional ladder device.

[Explanation of symbols]

 1 Ladder 2 Pillars 3 Brackets 4 Brackets 5 Brackets 5 Hooks 6 Pointed parts 7 Receiving members 8 Engaging parts 9 Engaging parts 10 Holes 11 Holes 12 Connecting members 13 Retaining members 14 Steps 15 Steps 16 Side ends 17 Hooks Part 18 Engagement part 19 Engagement part 20 Hole 21 Hole

Claims (3)

[Scope of utility model registration request] 1. A ladder device to be attached to a work surface such as a pillar at a construction work site, wherein a support member for attaching the ladder is fixed to the work surface, and the ladder is attached to an engaging portion formed on the support member. A ladder device characterized in that a hooking metal provided is engaged to support a ladder detachably on a work surface. 2. A pair of engaging portions, which are formed on the receiving and supporting member and are engaged with hooking metal fittings provided on the ladder, are formed with holes into which the hooking metal fittings are fitted, and one of the hole portions is formed. The ladder device according to claim 1, wherein the hook fitting is closely fitted to the hook fitting, and the other fitting is loosely fitted to the hook fitting. 3. The ladder device according to claim 1 or 2, wherein the step-down flat U-shaped step which is continuous with the ladder is detachably attached to the work surface.